Key parameters at a glance

A radius of 2.58 Earth radii
A mass of 7.18 Earth masses
Surface gravity around 1.08 g
An orbital period of 9.826 days
Semi-major axis 0.0960 AU
Equilibrium temperature 935 K (662 °C)
Distance from Earth 5,052.45 light-years
Earth Similarity Index 0.266
Travel time at Voyager 1 speed 89,099,950 years

1 sibling around Kepler-182

Kepler-182 b shares its host star with 1 other confirmed planet. Side-by-side measurements below.

Planet	Type	Radius (R⊕)	Mass (M⊕)	Period (d)	Eq. T (K)	Year
Kepler-182 b this	Sub-Neptune	2.58	7.18	9.826	935	2014
Kepler-182 c	Sub-Neptune	3.43	11.60	20.684	729	2014

Kepler-182 b Planet Profile

Physical Specs

Radius

2.58 R⊕

Radius (Jupiter)

0.230 R♃

Mass

7.18 M⊕

Mass (Jupiter)

0.023 M♃

Density

2.30 g/cm³

Surface Gravity

1.08 g (Earth)

Classification

Planet Type

Sub-Neptune

ESI Score 0.266

HZ Position Inner

Controversial No

Discovery

Year 2014

Method Transit

Facility Kepler

Telescope 0.95 m Kepler Telescope

Size rank in cohort

Rank by radius

#1057of 1978

top 53.4%

This planet

2.58R⊕

Sub-Neptune median

2.71R⊕

Nearest-size peers

Kepler-1018 b 2.58 R⊕ Kepler-169 f 2.58 R⊕ Kepler-461 b 2.58 R⊕

Metric	Earth	Kepler-182 b	Jupiter
Radius (R⊕)	1.00	2.58	11.21
Mass (M⊕)	1.00	7.18	317.83
Density (g/cm³)	5.51	2.30	1.33
Surface Gravity (g)	1.00	1.08	2.53
Insolation (S⊕)	1.00	239.79	0.037

Star Catalogue Identifiers

TIC

TIC 267672183

Gaia DR2

Gaia DR2 2133080462292772096

Gaia DR3

Gaia DR3 2133080462292772096

System

Kepler-182

Percentile among Sub-Neptune cohort

Radius 2.580 R⊕ · percentile 46 / cohort 1978

Mass 7.180 M⊕ · percentile 43 / cohort 1978

Orbital period 9.83 d · percentile 33 / cohort 1946

Distance 1,549.09 pc · percentile 94 / cohort 1975

ESI 0.266 · percentile 20 / cohort 1978

Orbit & Habitability

Orbital Dynamics

Period

9.826 days

Semi-major axis

0.0960 AU

Eccentricity

0.000

Inclination

83.03 °

Year Length

A year here lasts approximately 9.83 Earth days (2.7% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0960 AU.

Transit Fingerprint

Depth

0.043 %

Duration

4.961 h

Impact parameter b

0.680

Rp / R★

0.020070

Transit midpoint (BJD)

2,454,964.4241

Photometric dip

Transit produces a flux drop of 433 ppm lasting ≈ 4.96 h.

Extended Orbital Architecture

Planet / star radius ratio

0.020070

Semi-major axis / stellar radius

7.310

Impact parameter (b)

0.680

Transit mid-time (BJD)

2,454,964.4241

Angular separation (arcsec)

0.06200

Eq. Temperature

935K

(662 °C)

Insolation (S⊕)

239.79

Earth = 1.00

Earth Similarity (ESI)

0.266

0 = alien, 1 = Earth-identical

Inside the inner HZ boundary (too hot for liquid water) — the surface is too hot to retain surface water.

Discovery Paper

Primary reference

Rowe et al. 2014

Instrument

Kepler CCD Array

Publication

2014-03

Observation locale

Space

Discovery cohort

Planets confirmed in 2014 at Kepler (12 shown).

Kepler-186 e · Super-Earth Kepler-395 c · Super-Earth Kepler-220 e · Super-Earth Kepler-249 d · Super-Earth Kepler-296 f · Super-Earth Kepler-367 c · Rocky Terrestrial Kepler-296 e · Super-Earth Kepler-155 c · Sub-Neptune Kepler-138 d · Super-Earth Kepler-333 c · Rocky Terrestrial Kepler-331 d · Super-Earth Kepler-267 d · Sub-Neptune

Host System: Kepler-182

Spectral Class

F-type yellow-white

Effective Temperature

6,250 K — hotter than the Sun (5,778 K)

Estimated Age

5.25 Gyr — older than the Sun (4.6 Gyr)

Stellar Radius

1.146 R☉

Stellar Mass

1.114 M☉

Metallicity [Fe/H]

0.07

Extended Stellar Properties

Surface gravity (log g)

4.401 dex

Stellar density

0.480 g/cm³

Metallicity ratio

[M/H]

Distance

1,549.09 parsec

Light-years 5,052.45 ly

V-band magnitude

14.94 mag

Voyager-speed travel 89,099,950 yr

Multi-band Host Photometry — 16 bands

Astrometric Data

Parallax

0.617 mas

Total Proper Motion

10.516 mas/yr

PM Right Ascension

-7.65 mas/yr

PM Declination

-7.22 mas/yr

Galactic Cartesian (pc)

x = 0.215 · y = -0.597 · z = 0.773

Equatorial (J2000)

RA 289.83011° · Dec 50.58620°

Galactic ℓ, b

81.843° · 16.482°

Ecliptic λ, β

311.823° · 71.157°

HTM-20 index

105920975